Boeing Warns on Dreamliner Deliveries

By

Jon Ostrower and

Marietta Cauchi

Updated Feb. 8, 2013 6:43 p.m. ET

Boeing Co. on Friday said it had warned customers that near-term deliveries of 787 Dreamliners are at risk of delays as the Chicago jet maker continued to work with regulators to identify the cause of battery problems that have grounded its fleet world-wide.

Boeing didn't offer new delivery dates, but one person briefed on its production planning says airlines and other customers could have to wait for more than three months.